At school, Aiko discovers that all the girls in her circle of friends aside from her have already had their first menstruation. After going home to her room, she reads up on menstruation and in frustration punches herself in the uterus. This seems to "awaken" Maa-chan, Aiko's anthropomorphic vagina, who begins coughing up blood. Maa-chan introduces herself and says that she's been with her ever since birth and from now on she's going to assist in her journey into adulthood. The next day at school Aiko tells her friends that she's now one of the them.
Aiko no Maa-chan has finished publishing and it has 13 Chapters. It is also Known as: あいこのまーちゃん, Aiko no Ma-chan
Genres: Comedy , School Life , Fantasy , Slice of Life
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Top Manga Like Aiko no Maa-chan [2026 List]
1. Shimoneta to Iu Gainen ga Sonzai shinai Taikutsu na Sekai: Manmaru-hen
16 years after the "Law for Public Order and Morals in Healthy Child-Raising" banned coarse language in the country, Tanukichi Okuma enrolls in the country's leading elite public morals school and is soon invited into the Anti-Societal Organization (SOX) by its founder, Ayame Kajou. As a member blackmailed into joining by Ayame, Tanukichi ends up taking part in obscene acts of terrorism against the talented student council president Anna (for whom Tanukichi has a crush on).
Shimoneta to Iu Gainen ga Sonzai shinai Taikutsu na Sekai: Manmaru-hen has finished publishing and it has 23 Chapters. It is also Known as: 下ネタという概念が存在しない退屈な世界 マン●篇, A Boring World Where the Concept of Dirty Jokes Does Not Exist, ShimoSeka, A Boring World Where the Concept of "Dirty Jokes" Does Not Exist
